body,html{
    margin:0;
    padding:0;
    background:red; 
    .box{
        width:100px;
        height:100px;
        background:blue;
        cursor: pointer;
    }
    .box2{
        width: 100px;
        height: 140px;
        background-image: url('./assaet/images/logo.png');
        background-repeat: no-repeat;
        background-size: 100% 100%;
    }
}
